IT24945: CLIENT CAN CRASH DURING SNAPDIFF BACKUP IF 'SET NETAPPSVM' AND 'SET PASSWORD' COMMANDS ARE CONFIGURED INCORRECTLY

IBM Spectrum Protectâ„¢ Client 8.1.6 Downloads and READMEs

APAR status

• Closed as program error.

Error description

• If the required parameters in the 'set netappsvm' and 'set
  password -type=filer' commands were
  incorrect when run on a Linux platform, the client can crash
  during a snapdiff backup with the following message:
  
  ANS0361I DIAG: linux/psunxthr.cpp ( 207): B/A Txn  Producer
  thread, fatal error, signal 11
  
  Analysing core with getcoreinfo.txt on Linux platform will show
  a stack similar to:
  
  #0 0x00000032d1832625 in raise () from /lib64/libc.so.6
  #1 0x00000032d1833e05 in abort () from /lib64/libc.so.6
  #2 0x00000000006f4a14 in psTrapHandler(int) ()
  #3 <signal handler called>
  #4 0x00000032d1928426 in __strcmp_sse42 () from /lib64/libc.so.6
  #5 0x00000000006c52fb in StrCmp(char const*, char const*) ()
  #6 0x0000000000614205 in baPerformSnapDiff(backupPrivObject_t*,
  backupSpec*, DccPISnapshot*, Sess_o*) ()
  #7 0x0000000000557fb3 in baProcessRequest(backupPrivObject_t*,
  backupSpec*) ()
  #8 0x000000000055c661 in baRequestHandler(backupPrivObject_t*,
  backupSpec*) ()
  #9 0x00000000005a5d75 in DccTxnProducer::HandleQueue() ()
  #10 0x00000000005a648d in DccTxnProducer::Run(void*) ()
  #11 0x00000000005a65e1 in DccTxnProducer::DoThread(void*) ()
  #12 0x00000000005a660d in callDoPThread2(void*) ()
  #13 0x00000000006e1a09 in startThread2(Threadstart*) ()
  #14 0x00000000006e1a3f in startThread(Threadstart*) ()
  #15 0x00000032d1c07a51 in start_thread () from
  /lib64/libpthread.so.0
  #16 0x00000032d18e896d in clone () from /lib64/libc.so.6
  
  A service trace will show before crash:
  
  NAHWInterface.cpp (7427): Error during storage-path </vol_name>:
  : Unable to find API:
  storage-path
  
  NAHWInterface.cpp (8804): hwPerformAction(): Exiting with rc =
  13005
  
  hdwaction.cpp ( 853): PerformHdwAction:
  
  hdwaction.cpp ( 856): Exit: function PerformHdwAction() rc=13005
  
  hdwaction.cpp ( 318): Exit: function piHdwPerformAction()
  rc=13005
  
  For example, the syntax for 'set netappsvm' is:
  SET NETAPPSVM  svm_hostname cms_hostname &#160;svm_nam
  if the 3 parameters do not match the current environment, then
  the client will crash
  during snapdiff backup
  
  
  Initial Impact: Medium
  
  IBM Spectrum Protect versions affected:
  Client 7.1.6.5 and higher, and 8.1.x and higher on Linux
  platforms
  
  | MDVREGR 7.1.6.5-TIV_5698MCL |
  
  Keywords:
  TSM snapdiff client backup core crash abend config parameters
  svm
  

Local fix

• Configure 'set netappsvm' and 'set password -type=filer' using
  the correct parameters for current environment, as per the
  documentation.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Spectrum Protect Backup-Archive Client versions 7.1 and  *
  * 8.1 running on Linux x86_64 platform                         *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * see ERROR DESCRIPTION                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fixing level wen available. This problem is projected  *
  * to be fixed in level 8.1.6. Note that this is subject to     *
  * change at the discretion of IBM.                             *
  ****************************************************************
  *
  

Problem conclusion

• The code has been changed and crash of IBM Spectrum Protect for
  Backup-Archive Client will not happen during snapdiff backup in
  case of incorrect settings.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Modules/Macros

• dsmc
  

Fix information

• Fixed component name

  TSM CLIENT

• Fixed component ID

  5698ISMCL

Applicable component levels

• R81L PSY

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